2565526 has 4 divisors (see below), whose sum is σ = 3848292. Its totient is φ = 1282762.

The previous prime is 2565463. The next prime is 2565559. The reversal of 2565526 is 6255652.

2565526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641380 + ... + 641383.

It is an arithmetic number, because the mean of its divisors is an integer number (962073).

2^2565526 is an apocalyptic number.

2565526 is a deficient number, since it is larger than the sum of its proper divisors (1282766).

2565526 is a wasteful number, since it uses less digits than its factorization.

2565526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282765.

The product of its digits is 18000, while the sum is 31.

The square root of 2565526 is about 1601.7259440991. The cubic root of 2565526 is about 136.8964354856.

The spelling of 2565526 in words is "two million, five hundred sixty-five thousand, five hundred twenty-six".